This is just a FYI.
I had all my domain name registered thru Dyn.com, Dyndns.com, Dyndns.org (all the same company).
I have been paying about 15 per year per each domain which is not so bad.
But at 60 dollars a year per domain for dns services was not wanted and i had been thinking of switching my dns services to a more economical cost.
For various reasons, I decided to try godaddy.com's Premium DNS service.
This is all a guess on my part of what servers locations are at on dyn.com and godaddy.com.
I am no expert but what seems to be is that dyn.com had 4 dns servers at the same city location with incremential numbers of the ip addresses, likely in the same room.
godaddy.com seems to have 2 servers at the same city location but with different ip addresses.
Well dyn.com wanted 60 dollars per domain per year with a discount to 106 dollars for 2 years.
I did some set ups with godaday.com and testing. I found out with one Premium DNS subscription that I could add as many domain dns services that I needed for one services.
godaddy.com charged something less than 3 dollars a month with a yearly subscription of less than 36 dollars and a discount for more years for all my needs.
I do not have the activity that justifies paying a lot for those services.
I have just transferred one domain name with a painless move. I keep a couple of domains just for testing rather than production domains.
I use to have a single domain at godaddy.com where they had hosted a simple webpage while i was learning in the early days about web things and I transferred it away because dyndns also had free services to their dyndns.org from a few routers which they now charge for and they trimmed their services down to as single dyndns.org service along with a single paid for domain name.
Dyndns.com has always been good to me and when I called them, they helped me understand what i was doing. I have had their service for years and they received the benefit to the services they offered me in return.
Anyway, I am writing this to what I have done.